Help with PSU decision!

ETSA

ETSA

New Member
Currently I have selected this PSU (Antec NeoHE 500 ATX12V 500W Power Supply) and am uncertain if it is apporpriate or powerful enough, I hear a lot of talk about enough amperage on the 12v rail. (30) Unsure about this. Please make suggestions or assure, and reasons people, reasons! :-)



This is for gaming/everyday use.



GIGABYTE 3D AURORA Silver Aluminum ATX Full Tower Computer Case

ASUS Beige 16X DVD-ROM 48X CD-ROM ATAPI/E-IDE DVD-ROM

Thermaltake SILENT 775 CL-P0092 90mm 1 Ball

Update ALPS Silver 1.44MB 3.5" Internal Floppy Drive

GIGABYTE GA-965P-DS3 Socket T (LGA 775) Intel P965 Express ATX Intel Motherboard

Update Seagate Barracuda 7200.10 ST3200820AS 200GB 7200 RPM SATA 3.0Gb/s Hard Drive - OEM

CORSAIR XMS2 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Unbuffered Dual Channel Kit System Memory Model TWIN2X2048-6400

Intel Core 2 Duo E6600 Conroe 2.4GHz LGA 775 Processor Model BX80557E6600

Geforce 7900GT 256MB GDDR3 PCI Express x16
 
The PSU you have selected is closer to the thin line than having any reserve left.


Your rig is no penny squeezer, so therefore if I had what you have invested I would get the 600 watt Fortron PSU listed in newegg.com for $139.00

that model fortron is 85% efficient with active PFC its a high class work horse that puts out 700 watts @ peak which translates to an easy sustain of 600 watts

the easier a psu runs; the better environment for all your computer parts and that 600 watt unit wont be blowing the hot air around like
that the 500 watt antec would be either !

Antec's are good units but they are no equal for Fortron for sure !

antec has not yet made a psu thats 80% efficient
 
Linderman said:
The PSU you have selected is closer to the thin line than having any reserve left.


Your rig is no penny squeezer, so therefore if I had what you have invested I would get the 600 watt Fortron PSU listed in newegg.com for $139.00

that model fortron is 85% efficient with active PFC its a high class work horse that puts out 700 watts @ peak which translates to an easy sustain of 600 watts

the easier a psu runs; the better environment for all your computer parts and that 600 watt unit wont be blowing the hot air around like
that the 500 watt antec would be either !

Antec's are good units but they are no equal for Fortron for sure !

antec has not yet made a psu thats 80% efficient
Click to expand...

My friend has almost the exact same rig (E6400 instead of E6600) and he has a rosewill 450watt psu and its been running strong for a few months. There is no need to get a $140 PSU for that rig unless he is planning on making some major upgrades.
 
diduknowthat said:
It should be enough for that system, but if you go SLI, then it won't be enough.
Click to expand...
The NeoHE500 has SLI certification for dual 7900GTs. It will be more than adequate to power the system in question.

Your rig is no penny squeezer, so therefore if I had what you have invested I would get the 600 watt Fortron PSU listed in newegg.com for $139.00
Click to expand...
The OCZ GameXStream 600W is a better choice than the FSP Epsilon, being fundamentally the same unit $25 cheaper. Again I stress that the NeoHE is more than adequate.

If you really want to get a new one, look into the Antec trupower line.
Click to expand...
The NeoHE series is, in general, the better line.
 
"A minimum 400W system power supply (with 12V current rating of 26A)"

http://www.newegg.com/Product/Product.asp?item=N82E16814150144

This is stated on the graphics card I am most likely going to get, however....
I have found very few that have that high of amperage, the one I am looking at says this

"+3.3V@23A, +5V@17A, +12V1@17A, +12V2@17A, +12V3@17A, [email protected], [email protected]"

http://www.newegg.com/Product/Product.asp?item=N82E16817103940


does this mean I have not reached the recommended amperage...

or am I looking at the wrong spot or am I confused as to how this info is interpreted?
 
if you ever have an inklingly to sli you have to consider the heat produced by such a set-up I would not feel comfortable myself running a high cost video card and then skimp on PSU makes no sense its like building a race car motor then run no name oil in it ??????????????

The OCZ supplies are no slouch either if you want the $25.00 reduction but the Fortron is a better unit ! 85% efficient and 700 watt peak ?????

dont forget when the heat goes up the power output goes down >>> you must take into account the de-rating curve with heat !
 
Linderman said:
The OCZ supplies are no slouch either if you want the $25.00 reduction but the Fortron is a better unit ! 85% efficient and 700 watt peak ?????
Click to expand...
No, the OCZ is better. So it is 5% less efficient, so what. 700W peak, and 72A on the 12v rails...you can't get much more power than that.
 
ceewi1 said:
The NeoHE series is, in general, the better line.
Click to expand...

my bad, I was thinking of the phantom line :o

Linderman said:
if you ever have an inklingly to sli you have to consider the heat produced by such a set-up I would not feel comfortable myself running a high cost video card and then skimp on PSU makes no sense its like building a race car motor then run no name oil in it ??????????????

The OCZ supplies are no slouch either if you want the $25.00 reduction but the Fortron is a better unit ! 85% efficient and 700 watt peak ?????

dont forget when the heat goes up the power output goes down >>> you must take into account the de-rating curve with heat !
Click to expand...

The Antec NeoH 500watt psu has 3 12v rails adding up to a total of 51amps. He really isn't skimping the PSU, it costs $99 on newegg.
 
Linderman said:
500 watts for such a rig with possible intentios of later SLI thats the thin line for sure !
Click to expand...

ok compare these PSU's..

JPAC ATX 500watt Power Supply with a total of 18amps on the 12v rail
http://www.newegg.com/Product/Product.asp?Item=N82E16817708001

Antec NeoHE 500watt Power Supply with a total of 51 amps spread across 3 12V rails
http://www.newegg.com/Product/Product.asp?Item=N82E16817103940

Watt doesn't mean everything. Both of those PSU's advertise 500watt, yet there's a HUGE different in amount of power output, atleast on the 12v rail, because the cheaper PSU put 50amps on the 5V rail.

If he has the money, sure go ahead, spend lots of money on the PSU. But does he really need it? No he probably does not.
 
ok i give up


i still dont understand the logic to powering the higest pricved video card with less than an equal class psu?????


but FWIW i have said my piece & i'm outta this
 
Linderman said:
ok i give up


i still dont understand the logic to powering the higest pricved video card with less than an equal class psu?????


but FWIW i have said my piece & i'm outta this
Click to expand...

lol it's a 7900gt, not the highest priced, we're not talking about 7950GX2 or x1950xtx's here.

Anyways, I do partly agree with you, but that PSU is a very good PSU.

Plus..

Minimum of a 450 Watt power supply.
(Minimum recommended power supply with +12 Volt current rating of 28 Amp Amps.)
Click to expand...

I know minimum specs aren't usually correct, but his PSU almost doubles the minimum requirements of the 7950GX2.
 
Linderman said:
if you ever have an inklingly to sli you have to consider the heat produced by such a set-up I would not feel comfortable myself running a high cost video card and then skimp on PSU makes no sense its like building a race car motor then run no name oil in it ??????????????
Click to expand...
A NeoHE 500 is by no means skimping

The OCZ supplies are no slouch either if you want the $25.00 reduction but the Fortron is a better unit ! 85% efficient and 700 watt peak ?????

dont forget when the heat goes up the power output goes down >>> you must take into account the de-rating curve with heat !
Click to expand...

OCZ units are OEM'd by FSP. The GameXStream 600W and the FSP Epsilon 600W are in fact the same unit (OCZ have just added their own fan).

500 watts for such a rig with possible intentios of later SLI thats the thin line for sure !
Click to expand...
nVidia's SLI certification program is quite conservative. They will not certify units that won't power the system in question.
 
Bobo said:
No, the OCZ is better. So it is 5% less efficient, so what. 700W peak, and 72A on the 12v rails...you can't get much more power than that.
Click to expand...


but then.. what would you need it for? for the show? that if you get a shortage somewhere you get a nice firework too? sure.. a strong and good quality PSU is a must for a good pc, afterall, the whole system depends on it. but this thing is just way too overkill ( unless youre putting in like 12HDD's and have a Quad SLI board with 4 7900GTX's or so. :P )
 
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